Differences by Practice Year in Numbers of U.S. Female Neurosurgeons

OBJECTIVE: We sought to determine the proportion and number of female neurosurgeons in the workforce at different stages of practice.METHODS: The Physician Compare National Downloadable File data set was obtained from the Centers for Medicare & Medicaid Services for physicians who indicated "neurosurgery" as their primary specialty. Physician duplicates, physicians with no listed medical school graduation year, and physicians expected to be in residency (graduation years 2013-2019) were removed, yielding 4956 neurosurgeons. Five-year intervals were used to measure the number of male and female neurosurgeons by different stages of their careers. For example, graduates from years 2008-2012 were expected to be in their first 15 years of practice.RESULTS: There were 405 female (8.2%) and 4551 male (91.8%) neurosurgeons. At 1-5 years of practice, 13.8% (105/760) were women; 6-10 years, 11.5% (94/820) women; 11-15 years, 8.9% (64/720) women; 16-20 years, 8.7% (59/ 682) women; 21-25 years, 7.4% (46/619) women; 26-30 years, 3.8% (20/520) women; 31-35 years, 3.6% (15/413) women; and 36 years or more, 0.5% women (2/422). The number of female neurosurgeons varied among states, ranging from 0 in Hawaii to 53 in California. The states with the lowest percentage of female neurosurgeons were Hawaii (0%), Oklahoma (3.1%), and Nevada (3.6%). The states with the highest percentage of female neurosurgeons were New Hampshire (20.0%), Vermont (16.7%), and Rhode Island (15.8%).CONCLUSIONS: The number of practicing female neurosurgeons within the United States is increasing, as shown by the growing percentage of women who are earlier in their surgical careers.